3M 7100166937 Idc Pigtail Quick Splice Connector 22-16 Awg

Product Description

The 3M 7100166937 is a red IDC (insulation displacement contact) pigtail quick splice connector rated for 22 to 16 AWG wire, accepting 2 to 3 wire entries per connector. It makes a solderless, tool-free electrical splice by displacing the wire insulation on contact, creating a reliable connection without stripping. Electricians and low-voltage installers use these connectors for branch splices in control wiring, thermostat circuits, and similar low-voltage applications. The connector is rated to a maximum operating temperature of 221 degrees F, making it suitable for installations in conditioned spaces and light-duty environments. This package contains 100 connectors.

These quick splice connectors are used in residential and light commercial electrical and HVAC control wiring where pigtail branch connections are needed without soldering or crimping tools. Typical applications include thermostat wiring, low-voltage control circuits, doorbell wiring, and similar signal or control wire runs. The IDC termination method speeds up installation in high-volume wiring tasks. Compatible wire sizes range from 22 AWG to 16 AWG, covering most small-gauge stranded and solid control wire used in the trade.

Key Features

• IDC termination — no wire stripping or crimping tools required
• Accepts 2 to 3 wire entries per connector
• Compatible with 22 to 16 AWG wire (0.50 to 1.50 sq mm)
• Rated to 221 degrees F maximum operating temperature
• Red color for quick visual identification during inspection
• UL Listed and CSA Certified; RoHS 2011/65/EU compliant

Compatibility

Designed for use with 22 to 16 AWG (0.50 to 1.50 sq mm) copper control and signal wire in residential and light commercial electrical, HVAC, and low-voltage wiring applications.

Installation Notes

Installation is typically performed by licensed electricians or HVAC technicians working on low-voltage control circuits. De-energize and verify power is off at the circuit before making any wire connections. Insert wires into the connector ports and close the cap fully to seat the IDC contacts — confirm the cap is completely closed before releasing. Follow applicable NEC requirements for the circuit type and installation environment.